[undefeated]

I've never heard of such a thing, but it sounds amazing!

Out of curiosity: How exactly did it work (for users)? I assume you'd write a grammar on the one pane, but how did you teach the tool to convert it into the output language? Was that embedded into the grammar?

[all2]

It was a BNF or EBNF grammar specified in a pane, or in a file. The save function didn't work when I used it, so I copied and pasted from a local text file. The tool consumed the grammar and produced a method/function call for the parser.

One of the cool things about it was that it did parse-as-needed, where you could change a rule and it would only reparse that rule.

[undefeated]

Was it only a BNF parser generator or did it also help with implementing the language's actual functionality?